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Advantage

Electric bells are cheaper than the usual bells used, such as sounders, or the traditional bell.

It doesn’t use that much current.

It can help with notifying you whenever there is danger like burglary, theft, etc.

The electric bell is loud enough to notify a different period in school, theft at home, even can be an alarm, railroad crossing alarm, etc.

Disadvantage

It can short circuit during rainy seasons.

It only works once you push it once. So it isnt automatic in anyway. But there are a few electric bells that work automatically, but most bells dont. It works with the magnetic effect of the current.

Batteries can die unexpectedly even though it don’t use much current.

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